Draft: Convert sequoia backend to use PySequoia
Hi folks
I've started rewriting your sequoia backend using pysequoia and if you don't mind your excellent test suite will provide a test bed on which features are needed in pysequoia.
Do note that this is a work in progress but I still want to share early results.
(btw the test suite is really impressive and I guess I can go far with it alone, I'll ping you in case of questions/problems, thanks for your time!)